Hello Laura,
thank you for your prompt response.
I have received the TEKAL model (in ifczip format) file of a steel structure from the fabricator. In order to monitor the fabrication process I have changed the colors of the elements that have already fabricated and are ready for shipment. I don't know how to keep the changes I have made and because of that I can't share the file with my collogues and supervisors, therefore I just take screenshots and share these files.
Thank you in advance for you time.